CN220670150U

CN220670150U - PCB drying device

Info

Publication number: CN220670150U
Application number: CN202322124973.3U
Authority: CN
Inventors: 刘德伦
Original assignee: Heshan Runchang Electronic Appliance Co ltd
Current assignee: Heshan Runchang Electronic Appliance Co ltd
Priority date: 2023-08-08
Filing date: 2023-08-08
Publication date: 2024-03-26
Anticipated expiration: 2033-08-08

Abstract

The utility model relates to a PCB drying device, which comprises a bottom plate, wherein U-shaped frames are arranged on two sides of the bottom plate, a top plate is arranged between opposite surfaces of the upper ends of the two U-shaped frames, a rotating shaft is rotatably arranged on the upper surface of the bottom plate, the top of the rotating shaft penetrates through the inside of the top plate and extends to the outer side of the top plate, two groups of rotating symmetrically distributed multiple placing clamping plates are arranged on the outer surface of the rotating shaft, a first reciprocating screw is rotatably connected between the upper side surface and the lower side surface of one U-shaped frame, the lower end of the first reciprocating screw penetrates to the outer side of the U-shaped frame, a second reciprocating screw is rotatably connected between the upper side surface and the lower side surface of the other U-shaped frame, and the upper end and the lower end of the second reciprocating screw penetrate to the outer side of the U-shaped frame. Through the setting of placing cardboard and drive arrangement, can realize blowing the hot-blast even every department of blowing to every PCB that the air heater blown out, can not appear the dead angle to can improve drying efficiency when the PCB board is dry in batches, and then improve enterprise's productivity effect.

Description

PCB drying device

Technical Field

The utility model relates to the technical field of PCB processing, in particular to a PCB drying device.

Background

The PCB is one of important parts in the electronic industry, can replace complex wiring, realizes electric connection among elements in a circuit, can simplify assembly and welding work of electronic products, reduces wiring workload in a traditional mode, can reduce the volume of the whole machine, reduces production cost and improves quality and reliability of equipment.

After the PCB board is processed through wet films, water is attached to the surface of the PCB board, concentrated drying treatment is generally needed, an existing drying device is used for blowing the PCB board to achieve the purpose of drying treatment by using an air heater, but the air blowing angle and the position of the air heater are fixed, when the batch of PCB boards are concentrated to be dried, the condition of uneven drying cannot be avoided, and under the condition that part of the PCB boards are dried, a small amount of PCB boards still remain to be moist, and the purpose of complete drying can be achieved only by increasing the drying time, so that the time consumption is long, the efficiency is low, and the production benefit of enterprises is reduced.

Disclosure of Invention

The utility model aims to provide a PCB drying device with high drying efficiency.

In order to achieve the above object, the technical scheme of the present utility model is as follows.

A PCB drying device comprises a bottom plate.

U-shaped frames are arranged on two sides of the bottom plate, a top plate is arranged between opposite surfaces of the upper ends of the two U-shaped frames, a rotating shaft is rotatably arranged on the upper surface of the bottom plate, the top of the rotating shaft penetrates through the top plate and extends to the outer side of the top plate, and a plurality of placing clamping plates which are distributed in two groups of rotational symmetry are arranged on the outer surface of the rotating shaft.

The upper end and the lower end of the first reciprocating screw rod and the lower end of the second reciprocating screw rod are respectively connected with a belt pulley group in a transmission mode.

The outer surfaces of the first reciprocating screw and the second reciprocating screw are provided with sliding blocks, the sliding blocks are in sliding connection with the U-shaped frame along the height direction of the sliding blocks, the air heaters are arranged on the outer sides of the sliding blocks, annular air pipes are arranged on the outer sides of the rotating shafts, the air outlet ends of the two air heaters are connected with the annular air pipes, and a plurality of air outlet pipes which are distributed in a rotationally symmetrical mode are arranged on one side of the annular air pipes, which faces the rotating shafts.

The top of the top plate is provided with a driving device which can drive the first reciprocating screw and the second reciprocating screw to rotate while driving the rotating shaft to rotate.

Therefore, through the setting of placing the cardboard, can vertically place the PCB board, and the remaining water droplet on surface receives the gravity effect to the whereabouts, and then improve drying efficiency, and drive arrangement drives pivot, first reciprocal lead screw and the reciprocal lead screw of second and rotate simultaneously, pivot self rotation when can realizing the reciprocal lift of annular tuber pipe, thereby can blow the hot-blast even every department of blowing to every PCB that the air heater blows out, can not appear the dead angle, thereby can guarantee when the PCB board is dry in batches, all PCB boards are dry simultaneously, avoid appearing a small amount of PCB boards still moist, need be through the mode that increases drying time, reduce the drying duration, raise the efficiency, and then improve the purpose of enterprise's productivity effect.

Further, the driving device comprises a motor arranged on the upper side of the top plate, a belt pulley group is arranged between an output shaft of the motor and the upper end of the second reciprocating screw in a transmission mode, a driving gear is arranged at the end portion of the output shaft of the motor, a driven gear is arranged at the top of the rotating shaft, and the driven gear is in meshed connection with the driving gear.

When the motor is started, the output shaft of the motor drives the driving gear to rotate, the driven gear is driven to rotate through the driving gear, the purpose of driving the rotating shaft to rotate is achieved, the purpose of reducing speed can be achieved through a transmission mode that the pinion drives the large gear, the rotating shaft can slowly rotate, the output shaft of the motor can drive the second reciprocating screw to rotate through belt transmission when the motor is started, the second reciprocating screw can drive the first reciprocating screw to rotate through belt transmission, and therefore the first reciprocating screw and the second reciprocating screw are enabled to rotate simultaneously, and the purpose of reciprocating lifting is achieved through the sliding block to drive the annular air pipe.

Further, the bottom of the clamping plate placed at the lower side is uniformly provided with water leakage holes along the length direction of the clamping plate, and the upper surface of the bottom plate is provided with a water collecting tank.

The residual water drops on the PCB plate drop into the water collecting tank downwards through the water leakage holes, so that the dropped water can be collected, and the site environment is prevented from being polluted.

Further, the drain pipe is installed to the bottom of bottom plate, and the drain pipe communicates with the water catch bowl, and the outside of drain pipe is provided with the valve.

The water collected in the water collecting tank can be discharged through the water discharging pipe, and the water discharging pipe can be closed and opened through the valve.

Further, the top of roof installs the protection casing, and the protection casing cover is established in driven gear and drive gear's outside.

The driven gear and the driving gear can be shielded through the protective cover, so that production accidents caused by false touch during operation of workers are prevented.

Further, the bottom of two U-shaped framves all installs the backup pad, and the bottom of backup pad is provided with anti-skidding rubber pad.

Through the setting of backup pad, can carry out stable placing with this device, and the setting of anti-skidding rubber pad can prevent the condition of sliding displacement to the backup pad is raised the bottom of this device, has reserved the mounted position of drain pipe, valve and other structures.

Drawings

Fig. 1 is a schematic perspective view of the present utility model.

FIG. 2 is a schematic diagram of a second perspective structure of the present utility model.

Fig. 3 is a schematic structural view of a driving device in the present utility model.

FIG. 4 is a schematic view of the structure of the rotating shaft and the placing clamping plate in the utility model.

Fig. 5 is an enlarged schematic view of a in fig. 2.

In the figure: 100. a bottom plate; 101. a U-shaped frame; 102. a top plate; 103. a rotating shaft; 104. placing a clamping plate; 105. a first reciprocating screw; 106. a second reciprocating screw; 107. a slide block; 108. an air heater; 109. an annular air pipe; 110. an air outlet pipe; 200. a driving device; 201. a motor; 202. a drive gear; 203. a driven gear; 300. a water leakage hole; 301. a water collection tank; 400. a drain pipe; 401. a valve; 500. a protective cover; 600. and a support plate.

Detailed Description

The present utility model will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1 to 5, a PCB board drying apparatus includes a base plate 100.

U-shaped frames 101 are arranged on two sides of the bottom plate 100, a top plate 102 is arranged between opposite surfaces of upper ends of the two U-shaped frames 101, a rotating shaft 103 is rotatably arranged on the upper surface of the bottom plate 100, the top of the rotating shaft 103 penetrates through the inside of the top plate 102 and extends to the outer side of the top plate, and a plurality of placing clamping plates 104 which are distributed in two groups of rotation symmetry are arranged on the outer surface of the rotating shaft 103.

A first reciprocating screw 105 is rotatably connected between the upper side surface and the lower side surface of the U-shaped frame 101, the lower end of the first reciprocating screw 105 penetrates to the outer side of the U-shaped frame 101, a second reciprocating screw 106 is rotatably connected between the upper side surface and the lower side surface of the U-shaped frame 101, the upper end and the lower end of the second reciprocating screw 106 penetrate to the outer side of the U-shaped frame 101, and a belt pulley group is arranged between the lower ends of the first reciprocating screw 105 and the second reciprocating screw 106 in a transmission mode.

The outer surfaces of the first reciprocating screw 105 and the second reciprocating screw 106 are respectively provided with a sliding block 107, the sliding blocks 107 are in sliding connection with the U-shaped frame 101 along the height direction, air heaters 108 are arranged on the outer sides of the sliding blocks 107, annular air pipes 109 are arranged on the outer sides of the rotating shafts 103, air outlet ends of the two air heaters 108 are respectively connected with the annular air pipes 109, and a plurality of air outlet pipes 110 which are distributed in a rotationally symmetrical mode are arranged on one side of the annular air pipes 109 facing the rotating shafts 103.

The top of the top plate 102 is provided with a driving device 200 capable of driving the first and second reciprocating screws 105 and 106 to rotate while driving the rotation shaft 103 to rotate.

When the device is used for drying the PCB, the PCB is firstly vertically placed in the two vertically corresponding placing clamping plates 104 one by one, residual water drops on the PCB slide downwards under the action of gravity, then the air heater 108 is started, hot air blown by the air heater 108 enters the annular air pipe 109 and uniformly blows to each PCB to dry the PCB through the air outlet pipe 110, then the driving device 200 can be used for controlling the rotation of the rotating shaft 103, the first reciprocating screw 105 and the second reciprocating screw 106, when the first reciprocating screw 105 and the second reciprocating screw 106 rotate simultaneously, the sliding block 107 mounted on the surface of the sliding block can be lifted reciprocally along with the sliding block, and then the annular air pipe 109 can be driven to lift reciprocally, so that the purpose that hot air can blow to each position of each PCB is realized, no dead angle can be generated, and all the PCBs can be dried simultaneously, and the drying efficiency is improved.

Specifically, the driving device 200 includes a motor 201 installed on the upper side of the top plate 102, a belt pulley set is driven between an output shaft of the motor 201 and an upper end of the second reciprocating screw 106, a driving gear 202 is installed at an end portion of an output shaft of the motor 201, a driven gear 203 is installed at a top of the rotating shaft 103, the driven gear 203 is meshed with the driving gear 202, when the motor 201 is started, the output shaft drives the driving gear 202 to rotate, and then the driven gear 203 can be driven by the driving gear 202 to rotate, so that the purpose of driving the rotating shaft 103 to rotate is achieved, a large gear is driven by a small gear, a speed reduction purpose can be achieved, the rotating shaft 103 can be slowly rotated, and when the motor 201 is started, the output shaft can drive the second reciprocating screw 106 to rotate through belt transmission, the second reciprocating screw 106 can drive the first reciprocating screw 105 to rotate simultaneously, and the annular air duct 109 is driven by the sliding block 107 to realize the purpose of reciprocating lifting.

Specifically, the bottom of the lower side placing clamping plate 104 is uniformly provided with water leakage holes 300 along the length direction, the upper surface of the bottom plate 100 is provided with a water collecting tank 301, and residual water drops on the PCB plate drop into the water collecting tank 301 downwards through the water leakage holes 300, so that the dropped water can be collected, and the pollution to the field environment is avoided.

Specifically, the drain pipe 400 is installed at the bottom of the base plate 100, the drain pipe 400 is communicated with the water collecting tank 301, a valve 401 is provided at the outer side of the drain pipe 400, water collected in the water collecting tank 301 can be discharged through the drain pipe 400, and the drain pipe 400 can be closed and opened through the valve 401.

Specifically, the top of the top plate 102 is provided with the protective cover 500, the protective cover 500 is sleeved on the outer sides of the driven gear 203 and the driving gear 202, and the driven gear 203 and the driving gear 202 can be shielded through the protective cover 500, so that the production accident caused by false touch during the operation of workers is prevented.

Specifically, the backup pad 600 is all installed to the bottom of two U-shaped framves 101, and the bottom of backup pad 600 is provided with anti-skidding rubber pad, through the setting of backup pad 600, can carry out stable placing this device, and anti-skidding rubber pad's setting can prevent the condition of sliding displacement to backup pad 600 is raised the bottom of this device, has reserved the mounted position of drain pipe 400, valve 401 and other structures.

The foregoing detailed description of the utility model has been presented in conjunction with a specific embodiment, and it is not intended that the utility model be limited to such detailed description. Several equivalent substitutions or obvious modifications will occur to those skilled in the art to which this utility model pertains without departing from the spirit of the utility model, and the same should be considered to be within the scope of this utility model as defined in the appended claims.

Claims

1. A PCB board drying apparatus comprising a base plate (100), characterized in that:

a U-shaped frame (101) is arranged on two sides of the bottom plate (100), a top plate (102) is arranged between opposite surfaces of the upper ends of the two U-shaped frames (101), a rotating shaft (103) is rotatably arranged on the upper surface of the bottom plate (100), the top of the rotating shaft (103) penetrates through the inside of the top plate (102) and extends to the outer side of the top plate, and two groups of a plurality of placement clamping plates (104) which are symmetrically distributed in a rotating way are arranged on the outer surface of the rotating shaft (103);

a first reciprocating screw (105) is rotationally connected between the upper side surface and the lower side surface of the U-shaped frame (101), the lower end of the first reciprocating screw (105) penetrates through the outer side of the U-shaped frame (101), a second reciprocating screw (106) is rotationally connected between the upper side surface and the lower side surface of the U-shaped frame (101), the upper end and the lower end of the second reciprocating screw (106) penetrate through the outer side of the U-shaped frame (101), and a belt pulley group is arranged between the lower ends of the first reciprocating screw (105) and the second reciprocating screw (106) in a transmission manner;

the outer surfaces of the first reciprocating screw rod (105) and the second reciprocating screw rod (106) are respectively provided with a sliding block (107), the sliding blocks (107) are in sliding connection with the U-shaped frame (101) along the height direction of the sliding blocks, the outer sides of the sliding blocks (107) are provided with air heaters (108), the outer sides of the rotating shafts (103) are provided with annular air pipes (109), the air outlet ends of the two air heaters (108) are connected with the annular air pipes (109), and a plurality of air outlet pipes (110) which are distributed in a rotationally symmetrical mode are arranged on one side of each annular air pipe (109) facing the rotating shaft (103);

the top of the top plate (102) is provided with a driving device (200) capable of driving the first reciprocating screw (105) and the second reciprocating screw (106) to rotate while driving the rotating shaft (103) to rotate.

2. The PCB drying apparatus of claim 1, wherein:

the driving device (200) comprises a motor (201) arranged on the upper side of the top plate (102), a belt pulley set is arranged between an output shaft of the motor (201) and the upper end of the second reciprocating screw (106) in a transmission mode, a driving gear (202) is arranged at the end portion of the output shaft of the motor (201), a driven gear (203) is arranged at the top of the rotating shaft (103), and the driven gear (203) is in meshed connection with the driving gear (202).

3. A PCB drying apparatus according to claim 2, wherein:

the bottom of the placement clamping plate (104) at the lower side is uniformly provided with water leakage holes (300) along the length direction, and the upper surface of the bottom plate (100) is provided with a water collecting tank (301).

4. A PCB drying apparatus according to claim 3, wherein:

a drain pipe (400) is arranged at the bottom of the bottom plate (100), the drain pipe (400) is communicated with the water collecting tank (301), and a valve (401) is arranged on the outer side of the drain pipe (400).

5. The PCB drying apparatus of claim 4, wherein:

a protective cover (500) is arranged on the top of the top plate (102), and the protective cover (500) is sleeved on the outer sides of the driven gear (203) and the driving gear (202).

6. The PCB drying apparatus of claim 5, wherein:

the bottoms of the two U-shaped frames (101) are provided with supporting plates (600), and the bottoms of the supporting plates (600) are provided with anti-slip rubber pads.